Jillian is using integer tiles to add 7 + (negative 2). She uses the steps below.Step 17 positive tiles.Step 27 positive tiles a
nd 2 negative tiles.Step 37 positive tiles and 2 negative tiles. 2 positive and 2 negative tiles are circled.Step 47 + (negative 2) = 2Jillian has made an error. In which step does it occur?Step 1Step 2Step 3Step 4
